SmartObjectLayer.ReplaceContents

ReplaceContents(Image)

替换智能对象层中嵌入的智能对象内容。

public void ReplaceContents(Image image)

范围	类型	描述
image	Image	图片。

例子

以下代码演示了对嵌入式智能对象的支持。

[C#]

void AssertAreEqual(object actual, object expected)
{
    if (!object.Equals(actual, expected))
    {
        throw new FormatException(string.Format("Actual value {0} are not equal to expected {1}.", actual, expected));
    }
}

// 此示例演示如何更改 PSD 文件中的智能对象层以及导出/更新智能对象原始嵌入内容。
const int left = 0;
const int top = 0;
const int right = 0xb;
const int bottom = 0x10;
FileFormat[] formats = new[]
{
    FileFormat.Png, FileFormat.Psd, FileFormat.Bmp, FileFormat.Jpeg, FileFormat.Gif, FileFormat.Tiff, FileFormat.Jpeg2000
};
foreach (FileFormat format in formats)
{
    string formatString = format.ToString().ToLowerInvariant();
    string formatExt = format == FileFormat.Jpeg2000 ? "jpf" : formatString;
    string fileName = "r-embedded-" + formatString;
    string sourceFilePath = fileName + ".psd";
    string pngOutputPath = fileName + "_output.png";
    string psdOutputPath = fileName + "_output.psd";
    string png2OutputPath = fileName + "_updated.png";
    string psd2OutputPath = fileName + "_updated.psd";
    string exportPath = fileName + "_export." + formatExt;
    using (PsdImage image = (PsdImage)Image.Load(sourceFilePath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];

        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);

        // 让我们从 PSD 智能对象层导出嵌入的智能对象图像
        smartObjectLayer.ExportContents(exportPath);

        // 让我们检查原始图像是否正确保存
        image.Save(psdOutputPath, new PsdOptions(image));
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

        using (var innerImage = (RasterImage)smartObjectLayer.LoadContents(null))
        {
            AssertAreEqual(format, innerImage.FileFormat);

            // 让我们反转原始智能对象图像
            var pixels = innerImage.LoadArgb32Pixels(innerImage.Bounds);
            for (int i = 0; i < pixels.Length; i++)
            {
                var pixel = pixels[i];
                var alpha = (int)(pixel & 0xff000000);
                pixels[i] = (~(pixel & 0x00ffffff)) | alpha;
            }

            innerImage.SaveArgb32Pixels(innerImage.Bounds, pixels);

            // 让我们替换 PSD 层中嵌入的智能对象图像
            smartObjectLayer.ReplaceContents(innerImage);
        }

        // 让我们检查更新的图像是否正确保存
        image.Save(psd2OutputPath, new PsdOptions(image));
        image.Save(png2OutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }
}

也可以看看

class Image
class SmartObjectLayer
命名空间 Aspose.PSD.FileFormats.Psd.Layers.SmartObjects
部件 Aspose.PSD

ReplaceContents(Image, ResolutionSetting)

替换智能对象层中嵌入的智能对象内容。

public void ReplaceContents(Image image, ResolutionSetting resolution)

范围	类型	描述
image	Image	图片。
resolution	ResolutionSetting	分辨率设置。如果为 null，将使用图像分辨率。

例外

例外	（健康）状况
PsdImageException	只能替换嵌入式智能对象。

例子

此示例演示当新内容文件具有不同的分辨率时，ReplaceContents 方法可以正常工作。

[C#]

// 此示例演示当新内容文件具有不同的分辨率时，ReplaceContents 方法可以正常工作。
string fileName = "CommonPsb.psd";
string filePath = baseFolder + fileName; // 原始 PSD 图像
string newContentPath = baseFolder + "image.jpg"; // 智能对象的新内容文件
string outputFilePath = outputFolder + "ChangedPsd";
string pngOutputPath = outputFilePath + ".png"; // 输出PNG文件
string psdOutputPath = outputFilePath + ".psd"; //输出PSD文件
using (PsdImage psd = (PsdImage)Image.Load(filePath))
{
    for (int i = 0; i < psd.Layers.Length; i++)
    {
        var layer = psd.Layers[i];
        SmartObjectLayer smartObjectLayer = layer as SmartObjectLayer;
        if (smartObjectLayer != null)
        {
            smartObjectLayer.ReplaceContents(newContentPath);

            psd.Save(psdOutputPath);
            psd.Save(pngOutputPath, new PngOptions() { ColorType = Aspose.PSD.FileFormats.Png.PngColorType.TruecolorWithAlpha });
        }
    }
}

也可以看看

class Image
class ResolutionSetting
class SmartObjectLayer
命名空间 Aspose.PSD.FileFormats.Psd.Layers.SmartObjects
部件 Aspose.PSD

ReplaceContents(string, ResolutionSetting)

用文件替换内容。之后不需要调用 UpdateModifiedContent 方法。

public void ReplaceContents(string linkedPath, ResolutionSetting resolution)

范围	类型	描述
linkedPath	String	链接的路径。
resolution	ResolutionSetting	分辨率设置。如果为 null，将使用图像分辨率。

例子

此示例演示当新内容文件具有不同的分辨率时，ReplaceContents 方法可以正常工作。

[C#]

// 此示例演示当新内容文件具有不同的分辨率时，ReplaceContents 方法可以正常工作。
string fileName = "CommonPsb.psd";
string filePath = baseFolder + fileName; // 原始 PSD 图像
string newContentPath = baseFolder + "image.jpg"; // 智能对象的新内容文件
string outputFilePath = outputFolder + "ChangedPsd";
string pngOutputPath = outputFilePath + ".png"; // 输出PNG文件
string psdOutputPath = outputFilePath + ".psd"; //输出PSD文件
using (PsdImage psd = (PsdImage)Image.Load(filePath))
{
    for (int i = 0; i < psd.Layers.Length; i++)
    {
        var layer = psd.Layers[i];
        SmartObjectLayer smartObjectLayer = layer as SmartObjectLayer;
        if (smartObjectLayer != null)
        {
            smartObjectLayer.ReplaceContents(newContentPath);

            psd.Save(psdOutputPath);
            psd.Save(pngOutputPath, new PngOptions() { ColorType = Aspose.PSD.FileFormats.Png.PngColorType.TruecolorWithAlpha });
        }
    }
}

也可以看看

class ResolutionSetting
class SmartObjectLayer
命名空间 Aspose.PSD.FileFormats.Psd.Layers.SmartObjects
部件 Aspose.PSD

ReplaceContents(string)

用文件替换内容。之后不需要调用 UpdateModifiedContent 方法。

public void ReplaceContents(string linkedPath)

范围	类型	描述
linkedPath	String	链接的路径。

例子

下面的代码演示了更新 Linked Smart 对象的支持。

[C#]

void AssertAreEqual(object actual, object expected)
{
    var areEqual = object.Equals(actual, expected);
    if (!areEqual && actual is Array && expected is Array)
    {
        var actualArray = (Array)actual;
        var expectedArray = (Array)actual;
        if (actualArray.Length == expectedArray.Length)
        {
            for (int i = 0; i < actualArray.Length; i++)
            {
                if (!object.Equals(actualArray.GetValue(i), expectedArray.GetValue(i)))
                {
                    break;
                }
            }

            areEqual = true;
        }
    }

    if (!areEqual)
    {
        throw new FormatException(
            string.Format("Actual value {0} are not equal to expected {1}.", actual, expected));
    }
}

// 此示例演示如何使用这些方法更新外部或嵌入式智能对象层：
// RelinkToFile, UpdateModifiedContent, ExportContents
ExampleOfUpdatingSmartObjectLayer("rgb8_2x2_linked2.psd", 0x53, 0, 0, 2, 2, FileFormat.Png);
ExampleOfUpdatingSmartObjectLayer("r-embedded-png.psd", 0x207, 0, 0, 0xb, 0x10, FileFormat.Png);

void ExampleOfUpdatingSmartObjectLayer(
    string filePath,
    int contentsLength,
    int left,
    int top,
    int right,
    int bottom,
    FileFormat format)
{
    // 此示例演示如何更改 PSD 文件中的智能对象层并导出/更新其内容。
    string fileName = Path.GetFileNameWithoutExtension(filePath);
    string dataDir = "updating_output" + Path.DirectorySeparatorChar;
    filePath = filePath;
    string pngOutputPath = dataDir + fileName + "_modified.png";
    string png2OutputPath = dataDir + fileName + "_updated_modified.png";
    string psd2OutputPath = dataDir + fileName + "_updated_modified.psd";
    string exportPath = dataDir + fileName + "_exported." + GetFormatExt(format);
    using (PsdImage image = (PsdImage)Image.Load(filePath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];
        var contentType = smartObjectLayer.ContentType;
        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);

        if (contentType == SmartObjectType.AvailableLinked)
        {
            Directory.CreateDirectory(Path.GetDirectoryName(exportPath));
            // 让我们将外部智能对象图像从 PSD 智能对象层导出到新位置
            // 因为我们要修改它。
            smartObjectLayer.ExportContents(exportPath);
            smartObjectLayer.RelinkToFile(exportPath);
        }

        // 让我们反转智能对象的内容：内部（未缓存）图像
        using (var innerImage = (RasterImage)smartObjectLayer.LoadContents(new LoadOptions()))
        {
            InvertImage(innerImage);
            using (var stream = new MemoryStream())
            {
                innerImage.Save(stream);
                smartObjectLayer.Contents = stream.ToArray();
            }
        }

        // 让我们检查一下修改后的内容是否还没有影响渲染。
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

        smartObjectLayer.UpdateModifiedContent();

        // 让我们检查更新的内容是否影响渲染以及psd图像是否正确保存
        image.Save(psd2OutputPath, new PsdOptions(image));
        image.Save(png2OutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }
}

// 本例演示如何使用ConvertToLinked方法将嵌入的智能对象转换为外部链接内容。
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("new_panama-papers-4.psd", 0x10caa, 0, 0, 0x280, 0x169, FileFormat.Jpeg);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r3-embedded.psd", 0x207, 0, 0, 0xb, 0x10, FileFormat.Png);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-tiff.psd", 0xca94, 0, 0, 0xb, 0x10, FileFormat.Tiff);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-bmp.psd", 0x278, 0, 0, 0xb, 0x10, FileFormat.Bmp);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-gif.psd", 0x3ec, 0, 0, 0xb, 0x10, FileFormat.Gif);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-jpeg.psd", 0x327, 0, 0, 0xb, 0x10, FileFormat.Jpeg);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-jpeg2000.psd", 0x519f, 0, 0, 0xb, 0x10, FileFormat.Jpeg2000);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-psd.psd", 0xc074, 0, 0, 0xb, 0x10, FileFormat.Psd);
ExampleOfEmbeddedSmartObjectLayerToLinkedConversion("r-embedded-png.psd", 0x207, 0, 0, 0xb, 0x10, FileFormat.Png);

void ExampleOfEmbeddedSmartObjectLayerToLinkedConversion(
    string filePath,
    int contentsLength,
    int left,
    int top,
    int right,
    int bottom,
    FileFormat format)
{
    // 这演示了如何将 PSD 文件中的嵌入式智能对象层转换为外部层。
    var formatExt = GetFormatExt(format);
    string fileName = Path.GetFileNameWithoutExtension(filePath);
    string dataDir = "to_linked_output" + Path.DirectorySeparatorChar;
    filePath = filePath;
    string pngOutputPath = dataDir + fileName + "_to_external.png";
    string psdOutputPath = dataDir + fileName + "_to_external.psd";
    string externalPath = dataDir + fileName + "_external." + formatExt;
    using (PsdImage image = (PsdImage)Image.Load(filePath))
    {
        Directory.CreateDirectory(Path.GetDirectoryName(externalPath));
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];
        smartObjectLayer.ConvertToLinked(externalPath);

        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);
        AssertAreEqual(SmartObjectType.AvailableLinked, smartObjectLayer.ContentType);

        // 让我们检查转换后的图像是否正确保存
        image.Save(psdOutputPath, new PsdOptions(image));
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }

    using (PsdImage image = (PsdImage)Image.Load(psdOutputPath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];
        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);
        AssertAreEqual(SmartObjectType.AvailableLinked, smartObjectLayer.ContentType);
    }
}

// 此示例演示如何使用 EmbedLinked 方法在 PSD 文件中嵌入一个外部智能对象层或所有链接层。
ExampleOfLinkedSmartObjectLayerToEmbeddedConversion("rgb8_2x2_linked.psd", 0x53, 0, 0, 2, 2, FileFormat.Png);
ExampleOfLinkedSmartObjectLayerToEmbeddedConversion("rgb8_2x2_linked2.psd", 0x53, 0, 0, 2, 2, FileFormat.Png);
void ExampleOfLinkedSmartObjectLayerToEmbeddedConversion(
    string filePath,
    int contentsLength,
    int left,
    int top,
    int right,
    int bottom,
    FileFormat format)
{
    string fileName = Path.GetFileNameWithoutExtension(filePath);
    string dataDir = "to_embedded_output" + Path.DirectorySeparatorChar;
    filePath = filePath;
    string pngOutputPath = dataDir + fileName + "_to_embedded.png";
    string psdOutputPath = dataDir + fileName + "_to_embedded.psd";
    using (PsdImage image = (PsdImage)Image.Load(filePath))
    {
        var smartObjectLayer0 = (SmartObjectLayer)image.Layers[0];
        smartObjectLayer0.EmbedLinked();
        AssertAreEqual(contentsLength, smartObjectLayer0.Contents.Length);
        AssertAreEqual(left, smartObjectLayer0.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer0.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer0.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer0.ContentsBounds.Bottom);
        if (image.Layers.Length >= 2)
        {
            var smartObjectLayer1 = (SmartObjectLayer)image.Layers[1];
            AssertAreEqual(SmartObjectType.Embedded, smartObjectLayer0.ContentType);
            AssertAreEqual(SmartObjectType.AvailableLinked, smartObjectLayer1.ContentType);

            image.SmartObjectProvider.EmbedAllLinked();
            foreach (Layer layer in image.Layers)
            {
                var smartLayer = layer as SmartObjectLayer;
                if (smartLayer != null)
                {
                    AssertAreEqual(SmartObjectType.Embedded, smartLayer.ContentType);
                }
            }
        }

        Directory.CreateDirectory(Path.GetDirectoryName(psdOutputPath));
        // 让我们检查转换后的图像是否正确保存
        image.Save(psdOutputPath, new PsdOptions(image));
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }

    using (PsdImage image = (PsdImage)Image.Load(psdOutputPath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[0];
        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);
        AssertAreEqual(SmartObjectType.Embedded, smartObjectLayer.ContentType);
    }
}

// 此示例演示如何更改 Adobe® Photoshop® 外部智能对象层并导出/更新其内容
// 使用 ExportContents 和 ReplaceContents 方法。
ExampleOfExternalSmartObjectLayerSupport("rgb8_2x2_linked.psd", 0x53, 0, 0, 2, 2, FileFormat.Png);
ExampleOfExternalSmartObjectLayerSupport("rgb8_2x2_linked2.psd", 0x4aea, 0, 0, 10, 10, FileFormat.Psd);
void ExampleOfExternalSmartObjectLayerSupport(string filePath, int contentsLength, int left, int top, int right, int bottom, FileFormat format)
{
    string formatExt = GetFormatExt(format);
    string fileName = Path.GetFileNameWithoutExtension(filePath);
    string dataDir = "external_support_output" + Path.DirectorySeparatorChar;
    filePath = filePath;
    string pngOutputPath = dataDir + fileName + ".png";
    string psdOutputPath = dataDir + fileName + ".psd";
    string linkOutputPath = dataDir + fileName + "_inverted." + formatExt;
    string png2OutputPath = dataDir + fileName + "_updated.png";
    string psd2OutputPath = dataDir + fileName + "_updated.psd";
    string exportPath = dataDir + fileName + "_export." + formatExt;
    using (PsdImage image = (PsdImage)Image.Load(filePath))
    {
        var smartObjectLayer = (SmartObjectLayer)image.Layers[image.Layers.Length - 1];
        AssertAreEqual(left, smartObjectLayer.ContentsBounds.Left);
        AssertAreEqual(top, smartObjectLayer.ContentsBounds.Top);
        AssertAreEqual(right, smartObjectLayer.ContentsBounds.Right);
        AssertAreEqual(bottom, smartObjectLayer.ContentsBounds.Bottom);
        AssertAreEqual(contentsLength, smartObjectLayer.Contents.Length);
        AssertAreEqual(SmartObjectType.AvailableLinked, smartObjectLayer.ContentType);

        Directory.CreateDirectory(Path.GetDirectoryName(exportPath));
        // 让我们从 PSD 智能对象层导出链接的智能对象图像
        smartObjectLayer.ExportContents(exportPath);

        // 让我们检查原始图像是否正确保存
        image.Save(psdOutputPath, new PsdOptions(image));
        image.Save(pngOutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });

        using (var innerImage = (RasterImage)smartObjectLayer.LoadContents(null))
        {
            AssertAreEqual(format, innerImage.FileFormat);

            // 让我们反转链接的智能对象图像
            InvertImage(innerImage);
            innerImage.Save(linkOutputPath);

            // 让我们替换 PSD 层中链接的智能对象图像
            smartObjectLayer.ReplaceContents(linkOutputPath);
        }

        // 让我们检查更新的图像是否正确保存
        image.Save(psd2OutputPath, new PsdOptions(image));
        image.Save(png2OutputPath, new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
    }
}

// 反转图像。
void InvertImage(RasterImage innerImage)
{
    var innerPsdImage = innerImage as PsdImage;
    if (innerPsdImage != null)
    {
        InvertRasterImage(innerPsdImage.Layers[0]);
    }
    else
    {
        InvertRasterImage(innerImage);
    }
}

// 反转光栅图像。
void InvertRasterImage(RasterImage innerImage)
{
    var pixels = innerImage.LoadArgb32Pixels(innerImage.Bounds);
    for (int i = 0; i < pixels.Length; i++)
    {
        var pixel = pixels[i];
        var alpha = (int)(pixel & 0xff000000);
        pixels[i] = (~(pixel & 0x00ffffff)) | alpha;
    }

    innerImage.SaveArgb32Pixels(innerImage.Bounds, pixels);
}

// 获取格式扩展。
string GetFormatExt(FileFormat format)
{
    string formatExt = format == FileFormat.Jpeg2000 ? "jpf" : format.ToString().ToLowerInvariant();
    return formatExt;
}

也可以看看

class SmartObjectLayer
命名空间 Aspose.PSD.FileFormats.Psd.Layers.SmartObjects
部件 Aspose.PSD

SmartObjectLayer.RelinkToFile SmartObjectLayer.UpdateModifiedContent